57578069 has 2 divisors, whose sum is σ = 57578070. Its totient is φ = 57578068.

The previous prime is 57578047. The next prime is 57578077. The reversal of 57578069 is 96087575.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39853969 + 17724100 = 6313^2 + 4210^2 .

It is a cyclic number.

It is not a de Polignac number, because 57578069 - 2⁸ = 57577813 is a prime.

It is a super-2 number, since 2×57578069² = 6630468059537522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57578009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28789034 + 28789035.

It is an arithmetic number, because the mean of its divisors is an integer number (28789035).

Almost surely, 2^57578069 is an apocalyptic number.

It is an amenable number.

57578069 is a deficient number, since it is larger than the sum of its proper divisors (1).

57578069 is an equidigital number, since it uses as much as digits as its factorization.

57578069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 529200, while the sum is 47.

The square root of 57578069 is about 7588.0214153625. The cubic root of 57578069 is about 386.1467333895.

The spelling of 57578069 in words is "fifty-seven million, five hundred seventy-eight thousand, sixty-nine".